Light Needs
Mature Height
Mature Spread
Growing Zones
Prolific blooming and a compact growth habit make the Chrysalis™ Blue butterfly bush really pop in the landscape. On this Buddleia hybrid, rich purple flowers grace the ends of arching branches from spring through summer. As the name of this perennial suggests, the fragrant flowers attract butterflies, but hummingbirds and bees are also drawn to the blooms. A compact growth habit means this cultivar, also known as ‘Balchrylu’, is an excellent candidate for urban gardens and other small spaces like around patios or within a mixed perennial bed.
In USDA zone 5, this butterfly bush will die back to the ground and is root hardy. In warmer areas the stem is also hardy. The Chrysalis™ blue selection is resistant to downy mildew and once established offers excellent drought and rain tolerance. As a compact cultivar with a mounded habit, the Chrysalis™ may even be a good selection for container growing.
Chrysalis™ Blue Butterfly Bush Care
Position the Chrysalis™ blue butterfly bush in a location that receives full sunlight, or at least 6 hours of sun daily. A well-drained soil is critical to success with butterfly bushes. At planting, position the plant so it is planted very shallowly, and the soil forms a hill to meet the top of the root ball, especially in soils with a high clay content. Fertilize this plant monthly during the growing season to encourage vigorous growth and maximize blooming. Mulch over the root zone is a good idea, but make sure any mulch is pulled back away from the stems so moisture is not trapped against the plant.
Prune off spent blooms to encourage reblooming and keep the plant looking tidy. Cut the butterfly bush back to a node several inches above the soil line in spring. This species is very late to break dormancy in spring, so do not be alarmed if new growth is slow to appear.
Chrysalis™ Blue Butterfly Bush Spacing
The relatively compact Chrysalis™ blue butterfly bush grows 20 to 28 inches tall with a spread of 18 to 24 inches. Give each Chrysalis™ Blue plants at 24 - 26 inches of space.
Chrysalis™ Blue Butterfly Bush Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 5 to 9 (perennial); grown as an annual elsewhere (outdoors year-round); grown indoors elsewhere (outdoors year-round); grown in containers elsewhere (grown as a seasonal crop)
- Sun Exposure
- Full Sun (6+ Hours Direct Sun)
- Mature Height
- 2 Feet
- Mature Spread
- 2 Feet
- Growth Habit
- , Mounded
- Water Needs
- Dry
Flowers & Foliage
- Flower Colors
- , Purple
- Flower Description
- Purple
- Bloom Time
- Summer to Frost
- Blooms On
-
New Wood
?
"Blooms on" tells you which stems produce flowers, which decides when it's safe to prune.
- New Wood: Flowers form on stems that grow this season. Prune in late winter or early spring without losing blooms.
- Old Wood: Flower buds form on last year's stems. Prune right after flowering. Pruning in fall or early spring removes next year's blooms.
- Both New and Old Wood: Blooms on last year's stems and again on new growth, so it flowers even after a hard winter or a mistimed pruning. Prune lightly after the first flush of blooms.
- When to Prune
- Late winter to early spring, before new growth starts
- Foliage Color
- , Green
- Foliage Description
- Green
- Foliage Type
- , Deciduous
- Seasonal Interest
- , Spring Flowering, Summer Flowering
Garden Benefits
Plant Overview
- Common Name
- Chrysalis™ Blue Butterfly Bush
- Botanical Name
- Buddleia x Chrysalis Blue
- Plant Type
- Shrub
Simple Plant Spacing Calculator
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons
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We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Starting January 1, 2026 all bushes, perennials & trees purchased come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: ID, OR, AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!